Betta-Care-Group

Hey, I have a betta question.

I have a male double tail betta named Angel (here: lipizzaner-kgirl.deviantart.co…). A few weeks ago he suddenly got incredibly aggressive towards my red platy in the community aquarium, so I moved Angel to his own tank. He started having some trouble swimming but I figured it was because the filter was a little too strong for the smaller tank. It was what I had at the time and it was better than nothing.

Anyhow, I had to go out of town for a week and my family fed my fish while I was gone. Unfortunately, my red platy died while I was gone of a mysterious illness that I didn't observe because I wasn't there. Since the other fish had shown no symptoms of illness, I put Angel back in the community aquarium because he was happier there. He get along fine with all the other fish (he just hated the red platy, so racist lol).

However, I noticed a few days ago that he was still having trouble swimming even though the water flow wasn't strong as in the small tank. He would wobble from side to side and had difficulty swimming down. His swim bladder was also swollen. He was still eating, though.

I moved him into a hospital tank with no filter/water flow, no gravel (to monitor his poo,) and a place for him to rest near the surface. I've been treating him with Melafix and I'm treating him for constipation (not feeding him for a few days and then going to give him a pea.)



Do you think this is the right thing to do? Do you have any suggestions?

Hey, I'm not able to submit any pictures or anything. Little help please? c:
Kinda confused. cx

Hi!
Uhh..Maybe you guys can help me?

I have a male betta. A crowntail.

When I bought him, few month ago, he was normal, healty and young.
He was used to swim around for the tank (a 14 gallons with real plants, heater at 26/27°C, filter  -matured for a month and setted for have soft water flow- and all.. ).

Now are two weeks who he's always hidden between the filter and the glass.
Or he's always close to the filter, anyway.
He's always there. He comes out only for eat -he still eats with appetite- then he returns to his place.

I'm scared he could have something like dropsy. Just I'm not sure about it actually.
The food it's a good brand (Btw I feed him two times a day. Just a little pinch every time. I have an apposite food for bettas in grains, red mosquitoes larvae -just bought them and he seem hate them- and even dry artemia shrimps.) and the water it's clean.
I'm not sure he could actually have dropsy. I mean..He hasn't any sign or else on his body, fins or eyes, so the only thing that pops out into my mind it's indeed the dropsy.
Just he suddently started to being apathetic.
I'm checking his belly for see if there's some swollen part or else and I can't understand if it's me who is paranoic or if he actually has something.
Still from what I know, if a betta stays still and hidden all the time, it's a symptom of sickness.
Maybe can you help me to understand if he's actually sick?
Here there's some photo of the tank and of the fish in question. (I added the values of the water that I know, cuz I thought it could be useful.)
sta.sh/01bzr84wrbo6
What do you say?